Patents Assigned to RAS Holding Corp.
  • Publication number: 20070123919
    Abstract: A system and method is disclosed for making incisions in the sclera of an eye to form a scleral pocket to receive a scleral prosthesis. The system and method comprises a surgical tool comprising a surgical blade for making incisions in the sclera of an eye. When a surgeon places the surgical blade on the sclera of the eye a pressure sensor in the surgical tool determines whether there is sufficient pressure between the surgical tool and the sclera of the eye for the surgical tool to operate properly. The surgeon activates the surgical tool to cause the surgical blade to advance through the sclera to form an incision having dimensions to receive a scleral prosthesis. When the incision is complete the surgical blade is rotated back out of the incision. The incision has the exact dimensions to receive a scleral prosthesis.
    Type: Application
    Filed: January 25, 2007
    Publication date: May 31, 2007
    Applicant: RAS HOLDING CORP
    Inventors: Ronald Schachar, Donald Cudmore
  • Publication number: 20070078471
    Abstract: A system and method is disclosed for making incisions in the sclera of an eye to form a scleral pocket to receive a scleral prosthesis. The system and method comprises a surgical tool comprising a surgical blade for making incisions in the sclera of an eye. When a surgeon places the surgical blade on the sclera of the eye a pressure sensor in the surgical tool determines whether there is sufficient pressure between the surgical tool and the sclera of the eye for the surgical tool to operate properly. The surgeon activates the surgical tool to cause the surgical blade to advance through the sclera to form an incision having dimensions to receive a scleral prosthesis. When the incision is complete the surgical blade is rotated back out of the incision. The incision has the exact dimensions to receive a scleral prosthesis.
    Type: Application
    Filed: November 30, 2006
    Publication date: April 5, 2007
    Applicant: RAS HOLDING CORP
    Inventors: Ronald Schachar, Donald Cudmore
  • Publication number: 20060241750
    Abstract: A prosthesis for scleral expansion includes a central body portion and at least one end portion having a width greater than the width of the central body portion. The end portion therefore inhibits rotation of the prosthesis about a long axis when the prosthesis is implanted within a scleral pocket or tunnel. The other end of the central body portion may have a blunted end portion including grooves for receiving a edge or lip of an incision forming the scleral tunnel to inhibit the prosthesis from sliding within the scleral tunnel. Curvature of the bottom surface of the central body portion may be greater than the curvature of the innermost surface of the scleral tunnel so that contact between the scleral and the bottom surface of the prosthesis is primarily with the end portions.
    Type: Application
    Filed: June 26, 2006
    Publication date: October 26, 2006
    Applicant: RAS HOLDING CORP
    Inventors: Gene Zdenek, Ronald Schachar
  • Publication number: 20060106409
    Abstract: A system and method is disclosed for making incisions in the sclera of an eye to form a scleral pocket to receive a scleral prosthesis. The system and method comprises a surgical tool comprising a surgical blade for making incisions in the sclera of an eye. When a surgeon places the surgical blade on the sclera of the eye a pressure sensor in the surgical tool determines whether there is sufficient pressure between the surgical tool and the sclera of the eye for the surgical tool to operate properly. The surgeon activates the surgical tool to cause the surgical blade to advance through the sclera to form an incision having dimensions to receive a scleral prosthesis. When the incision is complete the surgical blade is rotated back out of the incision. The incision has the exact dimensions to receive a scleral prosthesis.
    Type: Application
    Filed: December 30, 2005
    Publication date: May 18, 2006
    Applicant: RAS HOLDING CORP
    Inventors: Ronald Schachar, Donald Cudmore
  • Publication number: 20060106408
    Abstract: A surgical blade is disclosed for use with a surgical tool for making incisions in the sclera of an eye to form a scleral pocket to receive a scleral prosthesis. The surgical blade comprises a rotatable support arm capable of being rotated by the surgical tool and a detachable curved cutting blade for making incisions in the sclera of an eye. The surgical tool causes the curved cutting blade to advance through the sclera to form an incision having dimensions to receive a scleral prosthesis. When the incision is complete the curved cutting blade is detached from the rotatable support arm. The curved cutting blade is then removed from the incision by pulling the curved cutting blade forward out of the incision. The incision has the exact dimensions to receive a scleral prosthesis.
    Type: Application
    Filed: December 30, 2005
    Publication date: May 18, 2006
    Applicant: RAS HOLDING CORP
    Inventors: Ronald Schachar, Donald Cudmoer
  • Publication number: 20060095126
    Abstract: A prosthesis for scleral expansion includes a central body portion and at least one end portion having a width greater than the width of the central body portion. The end portion therefore inhibits rotation of the prosthesis about a long axis when the prosthesis is implanted within a scleral pocket or tunnel. The other end of the central body portion may have a blunted end portion including grooves for receiving a edge or lip of an incision forming the scleral tunnel to inhibit the prosthesis from sliding within the scleral tunnel. Curvature of the bottom surface of the central body portion may be greater than the curvature of the innermost surface of the scleral tunnel so that contact between is the scleral and the bottom surface of the prosthesis is primarily with the end portions.
    Type: Application
    Filed: October 17, 2005
    Publication date: May 4, 2006
    Applicant: RAS HOLDING CORP
    Inventors: Gene Zdenek, Ronald Schachar
  • Publication number: 20060036269
    Abstract: A surgical blade is disclosed for use with a surgical tool for making incisions in the sclera of an eye to form a scleral pocket to receive a scleral prosthesis. The surgical blade comprises a rotatable support arm capable of being rotated by the surgical tool and a detachable curved cutting blade for making incisions in the sclera of an eye. The surgical tool causes the curved cutting blade to advance through the sclera to form an incision having dimensions to receive a scleral prosthesis. When the incision is complete the curved cutting blade is detached from the rotatable support arm. The curved cutting blade is then removed from the incision by pulling the curved cutting blade forward out of the incision. The incision has the exact dimensions to receive a scleral prosthesis.
    Type: Application
    Filed: August 8, 2005
    Publication date: February 16, 2006
    Applicant: RAS HOLDING CORP
    Inventors: Ronald Schachar, Donald Cudmore
  • Publication number: 20050283233
    Abstract: Presbyopia and other eye disorders are treated by implanting within a plurality of elongated pockets formed in the tissue of the sclera of the eye transverse to a meridian of the eye, a prosthesis having an elongated base member having an inward surface adapted to be placed against the inward wall of the pocket and having a ridge on the inward surface of the base extending along at least a major portion of the major dimension of the base. The combined effect of the implanted prostheses is to exert a radially outward traction on the sclera in the region overlying the ciliary body which expands the sclera in the affected region together with the underlying ciliary body. The expansion of the ciliary body restores the effective working distance of the ciliary muscle in the presbyopic eye and thereby increases the amplitude of accommodation. Introduced is an improved scleral prosthesis for the treatment of presbyopia and other eye disorders.
    Type: Application
    Filed: May 24, 2005
    Publication date: December 22, 2005
    Applicant: RAS HOLDING CORP
    Inventor: Ronald Schachar
  • Patent number: 6589217
    Abstract: Introduced is a device that may be used to treat the effects of macular degeneration and other eye disorders by increasing the optical effect of the retinal surface of the eye. This may be accomplished using a device whose body has a shape prescribed to increase the depth of the fovea and, in the process, make the sides of the clivus more convex, thereby utilizing the varying optical properties of the retinal area. A suitable association of this device with the eye will cause an image beam traveling from the lens through the vitreous humor to magnify and impinge an image perception area encompassing the macula. According to one advantageous embodiment, the device includes a body adapted for association with the eye to manipulate the retina of the eye to effectively augment the photoreceptor cells proximate the macula of the eye.
    Type: Grant
    Filed: November 26, 2001
    Date of Patent: July 8, 2003
    Assignee: RAS Holding Corp
    Inventor: Ronald A. Schachar
  • Patent number: 6579316
    Abstract: A segmented scleral expansion band adapted for implantation within or fastening to a segment of the sclera of an eye lying outside of and adjacent to the ciliary body of the eye, is formed from a number of arcuate segments, curved to match the curvature of the globe of the eye, and joined together at each end to form a complete scleral expansion band. The band is implanted in the sclera of the eye by forming circumferential tunnels, inserting the band segments through the tunnels, and joining the ends of the segments to form a complete scleral expansion band. The scleral expansion band is useful in treating presbyopia and other ocular disorders.
    Type: Grant
    Filed: March 5, 2001
    Date of Patent: June 17, 2003
    Assignee: RAS Holding Corp
    Inventor: Ronald A. Schachar
  • Patent number: 6493151
    Abstract: A variable focus lens is constructed by making small changes in the equatorial diameter of an elastically deformable lens. The lens may be deformed by radial tension exerted in a plane generally perpendicular to the optical axis. The radial tension may be exerted by radially acting mechanical apparatus or by means of rings embedded or attached at the equator of the lens, whose diameter can be altered by heating, or by imposition of electrical or magnetic fields.
    Type: Grant
    Filed: June 11, 2001
    Date of Patent: December 10, 2002
    Assignee: RAS Holding Corp
    Inventor: Ronald A. Schachar
  • Publication number: 20020140903
    Abstract: A system and method is disclosed for determining the resolving power of an eye. An eye is simultaneously illuminated with a first colored light source and a second colored light source. The colored light sources are moved toward the eye. At a point where the eye ceases to resolve the images of the two light sources the two colors of the light sources combine to form a third color. The eye easily perceives the sudden appearance of the third color that indicates the loss of resolution. In an alternate embodiment a display screen provides two colored light sources that flicker at different flicker rates. By selecting certain values for the flicker rates the two colored light sources combine to form a light that does not appear to flicker at the point where the eye ceases to resolve the images of the two colored flickering light sources.
    Type: Application
    Filed: March 28, 2002
    Publication date: October 3, 2002
    Applicant: RAS Holding Corp
    Inventor: Ronald A. Schachar
  • Publication number: 20020120285
    Abstract: A surgical blade is disclosed for use with a surgical tool for making incisions in the sclera of an eye to form a scleral pocket to receive a scleral prosthesis. The surgical blade comprises a rotatable support arm capable of being rotated by the surgical tool and a detachable curved cutting blade for making incisions in the sclera of an eye. The surgical tool causes the curved cutting blade to advance through the sclera to form an incision having dimensions to receive a scleral prosthesis. When the incision is complete the curved cutting blade is detached from the rotatable support arm. The curved cutting blade is then removed from the incision by pulling the curved cutting blade forward out of the incision. The incision has the exact dimensions to receive a scleral prosthesis.
    Type: Application
    Filed: February 22, 2002
    Publication date: August 29, 2002
    Applicant: RAS HOLDING CORP
    Inventors: Ronald A. Schachar, Donald P. Cudmore
  • Publication number: 20020120284
    Abstract: A system and method is disclosed for making incisions in the sclera of an eye to form a scleral pocket to receive a scleral prosthesis. The system and method comprises a surgical tool comprising a surgical blade for making incisions in the sclera of an eye. When a surgeon places the surgical blade on the sclera of the eye a pressure sensor in the surgical tool determines whether there is sufficient pressure between the surgical tool and the sclera of the eye for the surgical tool to operate properly. The surgeon activates the surgical tool to cause the surgical blade to advance through the sclera to form an incision having dimensions to receive a scleral prosthesis. When the incision is complete the surgical blade is rotated back out of the incision. The incision has the exact dimensions to receive a scleral prosthesis.
    Type: Application
    Filed: February 22, 2002
    Publication date: August 29, 2002
    Applicant: RAS HOLDING CORP
    Inventors: Ronald A. Schachar, Donald P. Cudmore
  • Patent number: 6322545
    Abstract: Introduced is a device that may be used to treat the effects of macular degeneration and other eye disorders by increasing the optical effect of the retinal surface of the eye. This may be accomplished using a device whose body has a shape prescribed to increase the depth of the fovea and, in the process, make the sides of the clivus more convex, thereby utilizing the varying optical properties of the retinal area. A suitable association of this device with the eye will cause an image beam traveling from the lens through the vitreous humor to magnify and impinge an image perception area encompassing the macula. According to one advantageous embodiment, the device includes a body adapted for association with the eye to manipulate the retina of the eye to effectively augment the photoreceptor cells proximate the macula of the eye.
    Type: Grant
    Filed: November 13, 2000
    Date of Patent: November 27, 2001
    Assignee: RAS Holding Corp
    Inventor: Ronald A. Schachar
  • Patent number: 6280468
    Abstract: Presbyopia is treated by implanting within a plurality of elongated pockets formed in the tissue of the sclera of the eye transverse to a meridian of the eye, a prosthesis having an elongated body having a first surface and a second surface opposite the first surface to contact the base and flap of the scleral pocket. The first and second surfaces are spaced apart a distance so that the implanted prosthesis exerts an outward force on the flap of the scleral pocket which results in an outward traction on at least the anterior margin of the scleral pocket. The combined effect of the implanted prostheses is to exert a radially outward traction on the sclera in the region overlying the ciliary body which expands the sclera in the affected region together with the underlying ciliary body. The expansion of the ciliary body restores the effective working distance of the ciliary muscle in the presbyopic eye and thereby increases the amplitude of accommodation.
    Type: Grant
    Filed: April 16, 1998
    Date of Patent: August 28, 2001
    Assignee: RAS Holding Corp
    Inventor: Ronald A. Schachar
  • Patent number: 6197056
    Abstract: A segmented scleral expansion band adapted for implantation within or fastening to a segment of the sclera of an eye lying outside of and adjacent to the ciliary body of the eye, is formed from a number of arcuate segments, curved to match the curvature of the globe of the eye, and joined together at each end to form a complete scleral expansion band. The band is implanted in the sclera of the eye by forming circumferential tunnels, inserting the band segments through the tunnels, and joining the ends of the segments to form a complete scleral expansion band. The scleral expansion band is useful in treating presbyopia and other ocular disorders.
    Type: Grant
    Filed: March 2, 1998
    Date of Patent: March 6, 2001
    Assignee: RAS Holding Corp.
    Inventor: Ronald A. Schachar
  • Patent number: 6146366
    Abstract: Introduced is a device that may be used to treat the effects of macular degeneration and other eye disorders by increasing the optical effect of the retinal surface of the eye. This may be accomplished using a device whose body has a shape prescribed to increase the depth of the fovea and, in the process, make the sides of the clivus more convex, thereby utilizing the varying optical properties of the retinal area. A suitable association of this device with the eye will cause an image beam traveling from the lens through the vitreous humor to magnify and impinge an image perception area encompassing the macula. According to one advantageous embodiment, the device includes a body adapted for association with the eye to manipulate the retina of the eye to effectively augment the photoreceptor cells proximate the macula of the eye.
    Type: Grant
    Filed: November 3, 1998
    Date of Patent: November 14, 2000
    Assignee: RAS Holding Corp
    Inventor: Ronald A. Schachar
  • Patent number: 6007578
    Abstract: Presbyopia is treated by implanting within a plurality of elongated pockets formed in the tissue of the sclera of the eye transverse to a meridian of the eye, a prosthesis having an elongated base member having an inward surface adapted to be placed against the inward wall of the pocket and having a ridge on the inward surface of the base extending along at least a major portion of the major dimension of the base. The combined effect of the implanted prostheses is to exert a radially outward traction on the sclera in the region overlying the ciliary body which expands the sclera in the affected region together with the underlying ciliary body. The expansion of the ciliary body restores the effective working distance of the ciliary muscle in the presbyopic eye and thereby increases the amplitude of accommodation. Hyperopia, primary open angle glaucoma and/or ocular hypertension can be treated by increasing the effective working distance of the ciliary muscle according to the invention.
    Type: Grant
    Filed: October 8, 1997
    Date of Patent: December 28, 1999
    Assignee: Ras Holding Corp
    Inventor: Ronald A. Schachar